Evaluation of Aquatrols experimental biostimulant formulations on fine turfgrass subjected to wear, drought (nutrient) and winter stress.

Project start date: June 2015
Projects completion date: May 2016

Facts

Principal investigator (PI):

Agnar Kvalbein, Norwegian Institute for Bioeconomy Research (NIBIO), Section for Urban Greening and Environmental Technology. Landvik, Reddalsveien 215, 4886 Grimstad

E-mail: agnar.kvalbein@nibio.no

Telephone: +47 40402089

Co-applicants:

Trygve S. Aamlid, NIBIO Bioforsk Turfgrass Research Group.

PDF

Final report Evaluation of Aquatrols biostimulant formulations

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Project objectives

To determine the effects of Aquatrols treatments on golf green turf under stress.

Project summary and status 1 January 2016

Five experimental biostimulant formulations were applied biweekly to a USGA green that was seeded with a blend of creeping bentgrass varieties. The treatments lasted from 3 June to 6 October and the experimental design was a completely randomised block with four replicates.

The green was fertilised biweekly with a complete balanced fertiliser. The seasonal N rate was 10 g m-2, which is about 60% of the normal rate for Scandinavian creeping bentgrass greens.

Observations made throughout the season were visual assessments of turfgrass overall impression colour and density. Chlorophyll index, soil moisture content and root development were also measured. The final observations will be made after snowmelt/soil thaw in spring 2016. The results will be presented in a confidential report to Aquatrols in June 2016.

Funding, kSEK

	2015	2016	Total
STERF	0	0	0
Other sources	130	108	238
Total	130	108	238

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